Diverter valve



July 26, 1932. w, SCHNEIDER 1,868,768

DIVERTER VALVE Filed April 18, 1950 E jfg 15 2 23 5 j 5 25 zzi jg 24V 4219 i a? 50 58 7 /12Z%%477/Sc med/er,

Q. l fl t g5 Patented July 26, 1932 i SEE-MES? WlTJLIAli/i SCHNEIDER, FERIE, PENNSYLVANIA, ASSIGNOR- T0 HAYS IEAITlIFAGTUR- ear-sur orrics ING('10., OF ERIE, PENNSYLVANIA,1A CORPORATION OF PENNSYLVANIA vngennmiiApplication filed Aprilv 18,

provide a short seat ring detachably thread-- ed in the valve casing'toform one of the seats I for the diverting valve.

which is separate from the seat ring and which does not have threadedengagement with the valve body so that it can be accu-.

position within the H boss 28 the outlet passageway 33 from the ratelyset in any desired valve body. 7

A further object is to provide an'arrange ment which will permit thevalve bonnet to be readily withdrawn from the valve body to expose theseat ring so that such ring maybe readily withdrawn for replacement orrepair without removing or disturbing the valve body after it has beeninstalled for service.

The above and other features of myjinven' tion are incorporated in thestructure shown v I p net engages the outer edge of the body extenon thedrawing, in which drawing;

Figure 1 is a diametral sectionalview of the valve structure;

Fi ure 2 is a section on line Il-II of Fig I I of the extension 11 toabut against the flange III-J11 of 3f! urel; and i Figure 3 1s asectionon plane Flgure 1.

The valve body comprises a casing'part' 10'having the extensionll atoneside forref ceiving the valve stem 1 2; The casing has opposite inletbosses'13 andlllprovidinginlet passageways 15 and 16 respectively whichat all times communicate with the mixing chamber 17 formed within thevalve'casing by inner wall structures*18.

The valve stem 12 extends axially through the valve body extension 11which is cylindrical, and the stem terminates in the mixing chamber in avalve head 19 which has the outer and inner beveled valving surfaces20and 21. At its outer side the wall structure 18 has the valve port 22concentric with the body extension 11 and providing the beveled seat 23for the valve surface "20 The inner M side of the wall structure 18 hasthe outlet Another important object is toprovide a guide sleeve orbonnet for the valve-stem" 1930i Serial N8. 445,288.

passageway 24': which is threaded to receive a seat ring 25, which ringat its end presents the beveled valve seat 26 for the valve sur-' face215 the inner diameter of the seat ring being; greater than the diameterof the valve stein to provide the outlet passageway 27throughthe'seatring. a

' Between the inlet bosses 13 and 14 and displaced 90 therefrom are theopposite outlet bosses 28 and 29011 the valvecasing part. An enlargement30 on the casing part forms with the outlet boss 29the outletpassageway3l with which the outlet port22Jcommunicates An enlargement 32between the casingand thefbody extension '11 forms with thexoutletinterior ofbody extension 11 which communicates with the passageway 27through the seat ring 25.

The valve stem 12 is guided by and operablein .a guide bushing or bonnet34 which does not have threaded engagement with the valve body extension11 but which fits accurately and rotationally inthe end of theextension. I The annular flange 35 on the honsion '1 1t o determine theposition of the honnet within theextension, and ja'nut or cap 36 hasthreaded engagement with .the outside 35 of the bonnet to hold thebonnet securely in position, a gasket 370i suitable ma terial beingpreferably interposed between the flange 35 and the extension;

" Atits inner endthe bonnet bore is threadedto receive the threaded hub38 on the valve I stem, thethreading being preferably multiple and oflong lead so. that a small angle ofrotation ofthe valve stem will resultin" considerable longitudinal movementof the valve-steals order torapidly shiftthe valve head 19' intoengagement with either of theseats23'or 26. Theouter end 39 of the valve; stein is polygonal to"receive a suitable handie structure 10 detachably held in place by ascr'ew'dl inthe well known manner.

At' it'souter end the bonnet 34 has a packing pocket 42' surrounding thestem into which a packing plug 43-threads tocompress suitable "packingmaterial 44 around thestem in order to prevent leakage. This plug 43 isinternally threaded for receiving a sleeve 45 having a head 46 at itsouter end for engaging an escutcheon frame or fitting 47 to hold suchfitting against a wall, as for example, the wall of the bath tub withwhich the valve structure is associated.

Describing now the operation of the valve structure, hot and cold waterare conducted to the inlet passageways and 16 respectively by suitablepipes through which the flow is controlled by suitable valve structures(not shown) the hot and cold water meeting in the mixing chamber 17 tobe thoroughly mixed therein. lVhen the valve stem is in, the valve head19 will engage the seat 23 to close the port 92 so that the mixed hotand cold water may flow past the exposed valve seat 26 and through theseating ring 25 into the interior of the extension 11 from where itflows through the passageway 33 to the source of demand which may be ashower bath nozzle. lVhen the valve stem is moved out it engages againstthe seat 26 to shut off the flow through the outlet passageway 38, andthe flow is diverted through the opened port 22 to the outlet passageway31 which may extend to the bath tub. It will be noted that while thevalve head is being brought against or removed from its respective valveseats the valve head will be rotated and the valve and valve seatsurfaces are given a grinding treatment which will keep them smooth andaccurately interfitting.

Should the valve head and seats require additional grinding orfinishing, the valve stem can be readily removed. After the handlestructure and the escutcheon fitting 47 are removed, the nut 36 iswithdrawn to re- 1 lease the bonnet 34 which, by rotational movement,can then be readily unscrewed from the valve stem and then withdrawnfrom the valve body extension 11. The seat ing ring 25 may be providedwith lugs 48 for receiving a tool inserted through the extension 11 sothat this seating ring may be readily unscrewed and removed, whereafterthe valve stem may be withdrawn, the valve head readily passing throughthe opening 24 provided in the wall structure 18. The seat on thewithdrawn seating ring and the valve surfaces on the withdrawn valvestem can then be readily ground and finished. and with a suitable toolintroduced through the extens sion 11 the valve seat 2-3 may berefinished.

not have threaded engagement with the valve body extension 11, thebonnet and the valve stem can be readily and accurately set to anyposition so that the handle structure 40 will be in the properindicating position relative to the direction markings or indicationsusually on the escutcheon structure 47. lVhere the valve structure isused to divert water to either a bath tub or a shower bath nozzle themarkings on the escutcheon fitting might be Tub and $hower, swing of thehandle structure to either of these indications then resulting in thecorresponding flow of water.

I thus produce a simple, eflicient and economically manufactureddiverter valve structure in which the operating parts may be readily andaccurately set and adjusted and can be readily removed withoutdisturbing the body of the valve structure after it has been installedfor service. I do not desire to be limited to the exact construction,arrangement and operation shown and described as changes andmodifications may be made without departing from the scope andprinciples of the invention.

I claim as follows:

A diverter valve of the class described, comprising the combination of avalve casing and a lateral extension thereon having a cylindrical bore,said casing having inlet openings, two outlets for said casing one ofwhich branches from the lateral extension, a valve within said casingselectively controlling the two outlets, a removable seating ring forsaid valve mounted in said casing concentric with the valve, operatingmeans for said valve including a. handle the position of which indicatesthe outlet which is open, the operating means including a rotatablevalve stem, a guide bushing for the valve stem in the extension bore atthe outer end thereof, a threaded hub on the valve stem, the inner endof the guide bushing being threaded to receive said hub, said guidebushing being rotatable relative to the extension bore in the extensionwhereby to adjust the indicating handle position to compensate for wearor variations in assembly, and means for clamping said guide bushing inadjusted position in said extension bore.

In testimony whereof I have hereunto subscribed my name at Erie, ErieCounty, Pennsylvania.

WILLIAM SCHNEIDER.

